How to reduce your bathroom water consumption and save money

Reduce bathroom water consumption

Have you ever wondered how much water do you use during your daily bathroom activities?

It may actually come to a surprise to realize the high amount of water that we use for bathing and showering. So, even if our water bill may not be that high, it is worth to try to cut the amount of water we waste.

We call it to wasted water because we may be able to achieve the same results while using less water

Let us show you what we are talking about and how you can reduce your bathroom water consumption and conserve water.

How to measure your bathroom water consumption

First you need to know how much water you are using and then you can decide if you are wasting water and where you can start saving water.

You need to start by finding out what the water flow of your water taps and shower head is. For that, you can just use a bucket and time how long does it take to get it filled to the one liter mark. 

The time it takes to fill up the bucket to the one liter mark let’s you know how much the water flow is. For example, the tap delivers 1 liter of water every 5 seconds or the shower head delivers 9 liters per second.

For more information about how to measure the water flow rate, have a look to the video we have added below. Also, this site provides a very good overview and the difference between water flow and water pressure.

For measuring the toilet water usage, you will need to take the water meter readings before and after flushing the toilet. The readings will let you know how much water your toilet is using, for example, 10 liters per flush.

Again, for more information about how to read a water meter, have a look to the video we have added below.

And as example, in our case, this are our water flow rate results:

Water usage
Shower Head1 liter every 5 seconds
Sink Tap1 liter every 5,5 seconds
Toilet liquid waste3 liters per flush
Toilet solid waste7 liters per flush

It is shocking to realize how much water it is being used in just a few seconds, specially while having a shower.

Know that we know how much water you are using per second or every time that you flush the toilet, the next step is to gather some additional information: 

– For how long and how often are you taking showers. Does everyone at home spend the same time under the shower?

– An approximation on how many times the toilets are flushed per day. 

– An estimation on how long you are using the water taps during the day.

And with all the information you have collected, you can already estimate your water usage and water cost. 

In our case, for our household, this are our results:

Bathroom DayMonthYear
Total water usage3209600115,200
Total water cost0,721,2253,4
Water usage estimationDayMonth YearTotal water cost
Shower100 30003600079,2
Bath7522502700059,4
Tap water8224602952064,9
Toilet liquid waste4513501620035,6
Toilet solid waste18540648014,2
Water usage estimationTimeWater usage
1 x quick shower2,5 min12 liters
1 x long shower13 min66 liters
1 x children bathn/a100 liters
1 x day of tap water15 min82 liters

After estimating how much water and money we are spending and where we are spending it, we got to know that our water fixtures are using a considerable amount of water in just a few seconds.

With that information, we started checking if it was possible to (reasonably) reduce the water flow through a cost effective solution.

Reduce your shower water usage

How to install a water flow reduction valve

After doing some research, we decided that installing an adjustable water flow valve it is an easy and economic way of reducing the amount of water we use while having showers.

With this valve we have managed to reduce the shower water flow from 1 liter every 5,5 seconds to 1 liter every 8,5 seconds without actually noticing any difference while having showers.

The advantage of the valve is that it is manually adjustable, so if some day we need to increase the water flow rate, we can do it without any effort. 

Or, if our small children are just playing with the water while enjoying their shower, we can decrease the water flow down to 1 liter every 10 seconds without them noticing any difference.

Additionally, the valve is discrete and unless you know it is there it is barely noticeable. 

For more details and specifications, clicking on the valve image below will direct you to the product in Amazon..

bathroom shower water tap with flow reduction valve

Reduce sink water wastage by reducing the water flow

Another solution that popped up by just having a closer look was that we could adjust the sink water flow rate by just adjusting the hot and cold water flow valves.

This way, we have adjusted the flow rate from 1 liter every 5 second to 1 liter every 9 second and even though the flow reduction it is noticeable, the truth is that the water flow was far to much and we were just wasting too much water.

1 liter of water every 9 seconds for cleaning hands, face or washing the teeth it is more than enough.  

Bathroom sink flow valves

Reduce water consumption by installing a water saving tap aerator

Old faucet models run on average of around 15 liters of water per minute while a standard aerator can reduce the water usage to as little as 6 litters per minute

Water saving tap aerators can reduce the water consumption even further and due to their low cost and easy installation are most definitely a water saving method to have in consideration.

We have installed a water saving tap aerator and the results speak by themselves

Before (no tap aerator)After (with and eco tap aerator)
1lites every 6 seconds1 liter every 15 seconds
10 liters per minute3,8 liters per minute
10 minutes per day = 100 liters10 minutes per day = 38 liters
100 x 220 days per year = 33,000 liters38 x 330 days per year = 12,540 liters
33,000 liters x 2 euro per cubic meter = 66 euro per year 12,540 liters x 2 euro per cubic meter = 25 euro per year

Have a look to the video below for more information. We are working towards making the videos available in different languages so, if English is not your main language, have a look to our YouTube channel for other language options

Dual flushing toilets

The toilet flushing didn’t present any water saving opportunity for our particular case. Our house has a dual flushing toilet which is one of the most efficient solutions on the market.

Still, have in consideration that some very old toilet use considerable amounts of water, up to 15 liters per flush

If this is your case and you are thinking about investing into installing a new toilet, just take some readings, crunch some numbers and the result may help into deciding if the saving are worth the investment.

Dual flushing toilet water usage

Reduce your water consumption

If you are interested on further increasing your knowledge and learning how to reduce your water consumption and save money, have a look to the ideas that we share in this video:

All our videos can be found in YouTube, in both English and Spanish languages.

Additionally, if you are looking for water saving opportunities but you don’t know where to start, use our water usage calculators to become aware of your water consumption, the water costs and the potential savings. 

A few ‘Water usage calculators‘ examples:

We hope that you have found this post informative and of value for you. If so, do not forget to share so others can also benefit from it.

This page may contain affiliate links. This means that we may earn advertising/referral fees if you make a purchase through one of our links, without any extra cost to you. 

Affiliate marketing helps with keeping this site afloat.  For more information, read our affiliate disclaimer 

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